Have hit a major brick wall with this one:

Thomas Kettles b circa 1762 d 1846 in Dunbarney, Perth.
First Marriage: Isabel Watson her parents were most probably James Webster & Helen Fortoun/Fortune/Firtane (Have seen it spelled all ways), according to some of my family's researchers. Married in Errol, Perth. on 23 Nov 1783

Children of this marriage: Thomas, John, Matthew, Janet, Jean, William, Catherine Matthew born in Perth (First 4 in Errol, Perth, 5th in Longforgan, 6 & 7 in Dunbarney.)

From the LDS site and on Scotland's People I found this marriage:
Groom's Name: Thomas Kettle
Bride’s Name: Isabel Webster
Marriage Date: 23 Nov 1783
Marriage Place: Errol,Perth,Scotland

Second Marriage Margaret Harley from Gast, Perthshire, lived circa 1786-1856
They married in 1808 in Dunning, Perth
Children of this marriage: Helen, Robert Matthew, Isabel, James, Charlotte Matthew, Charles all born in Pitkeathly Estates, Dunbarney.

Here is where I am stuck:
1) Who is the mother of Thomas Kettles b circa 1762 and where did she and Robert Kettle wed? Thomas's siblings that I know of were Laurence, John and David.

2) I'm looking for more information on the descendants of Thomas Kettles and Isabel Webster's son, William Kettles (b 01 Dec 1793 - d 17 Jun 1859 Ratho, Midlothian), who is my third great-grandfather, and more information on William wife's ancestors.

I have quite a bit of info for descendants of Thomas and Margaret, however not much for the descendants of Thomas and Isabel.

Thomas and Isabel's son William Kettles married Margaret Kellock (b21 May 1798, Kirkcaldy, Fife-died 03 Oct 1858 Ratho, Midlothian) They married on 02 Dec 1825, in Burntisland, Fife. Margaret Kellock's father was Thomas Kellock (b09 Dec 1768, Kirkcaldy, Fife: parents David Kellock, Jean Reid) and her mother was Elizabeth Whyte, (baptized 29 Oct 1769, Oakshaw East Associate Congregation, Paisley, Renfrew)- Thomas Kellock and Elizabeth Whyte married on Aug 5 1793.



Thank you for reading!